Finding the Fourth Proportional to 3,782,286.28, 5,219,342.49 and 2,151,090.46
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Solution
The fourth proportional to 3,782,286.28, 5,219,342.49 and 2,151,090.46 is: 2,968,383.94
Step by Step Solution
- Step 1: Write the proportion equation
3,782,286.28 : 5,219,342.49 = 2,151,090.46 : x - Step 2: Convert to fraction form
3,782,286.28/5,219,342.49 = 2,151,090.46/x - Step 3: Cross multiply
3,782,286.28x = 5,219,342.49 × 2,151,090.46 - Step 4: Simplify right side
3,782,286.28x = 11,227,277,837,711.65 - Step 5: Solve for x
x = 11,227,277,837,711.65/3,782,286.28 - Step 6: Final answer
x = 2,968,383.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.